2014 Event Jay Leno, entertainer and host of 'The Tonight Show', says goodbye after 22 years of hosting the show; he will be replaced with Jimmy Fallon beginning February 17 1997 Event USAir Arena closes, hosting Washington Wizards 1990 Event Nora Dunn and Sinead O'Connor boycott Saturday Night Live to protest Andrew "Dice" Clay's hosting 1970 Event Walter Cronkite ends hosting weekly documentary 1957 Event Walter Cronkite begins hosting weekly documentary 1919 Event Ir Steringa Idzerda begins hosting "soiree-musical" on Dutch radio
